http://www.armytimes.com/news/2008/09/army_homeland_090708w/ homeland mission... They may be called upon to help with civil unrest and crowd control or to deal with potentially horrific scenarios such as massive poisoning and chaos in response to a chemical, biological, radiological, nuclear or high-yield explosive, or CBRNE, attack. "nonlethal weapons designed to subdue unruly or dangerous individuals without killing them"